Weatherstrip & Seals - OEM-Fit EPDM Rubber Seals

Seal out wind, water, dust, and road noise with precision-fit automotive weatherstrip and seals manufactured to OEM specifications for your door, trunk, hatch, window, and window channel. Each seal is engineered to match the original profile and mounting groove of your vehicle’s factory application—restoring a tight, quiet seal and stopping the leaks and drafts that come with age.

Our weatherstrip is manufactured from durable, weather-resistant rubber compounds such as EPDM, engineered for an exact OEM-quality fit and finish. These materials resist sunlight, ozone, and chemical exposure while maintaining flexibility across temperature extremes—so your new seals stay soft and pliable instead of cracking, shrinking, or hardening the way factory-original rubber does over time.

Factory Interiors sources weatherstrip and seals from trusted manufacturers including Metro Moulded Parts and Fairchild Industries, giving you a wide range of factory-correct options for your vehicle. Use the Vehicle Selector above to find the correct weatherstrip for your year, make, and model, or browse below to explore available options. Whether you’re chasing down a stubborn water leak or completing a full restoration, Factory Interiors makes it easy to achieve a tight, factory-quality seal.

1966-1968 Oldsmobile Delta 88 Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.

For 1966-1968 GM B & C Body Convertibles, these pillar post seals, also known as hinge pillar weatherstrips, replace OEM #7602728 and #7602729. Designed to fit between the A-pillar post and the front door, these seals are crafted from soft yet durable EPDM sponge polymer, ensuring a snug and long-lasting fit. They feature embedded internal cores around the main mounting holes, providing extra strength during installation with original hardware. The seals also include hard plastic installation clips for a secure and hassle-free setup. Proudly made in the USA, they boast a smooth skin finish free of exposed cells or flaws, enhancing both durability and appearance. These seals are compatible with a range of classic models, including the 1966-1968 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Eldorado, Chevrolet Impala, Oldsmobile 98, Delta 88, Delmont 88, Dynamic 88, and Pontiac Bonneville, Catalina, and Grand Prix. Backed by a 30-year warranty from SuperSoft, you can trust in their quality and longevity.

Features and Benefits
  • Provides a tight seal to prevent water and air leaks.
  • Reinforced cores ensure durability during installation.
  • Includes clips for easy and secure mounting.
  • Made from premium EPDM sponge polymer for long-lasting performance.

$171.99
• SALE $137.95
Select Color/Material Options  
1966-1968 Oldsmobile Delta 88 Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.
1966 Oldsmobile Dynamic 88 Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.

For 1966-1968 GM B & C Body Convertibles, these pillar post seals, also known as hinge pillar weatherstrips, replace OEM #7602728 and #7602729. Designed to fit between the A-pillar post and the front door, these seals are crafted from soft yet durable EPDM sponge polymer, ensuring a snug and long-lasting fit. They feature embedded internal cores around the main mounting holes, providing extra strength during installation with original hardware. The seals also include hard plastic installation clips for a secure and hassle-free setup. Proudly made in the USA, they boast a smooth skin finish free of exposed cells or flaws, enhancing both durability and appearance. These seals are compatible with a range of classic models, including the 1966-1968 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Eldorado, Chevrolet Impala, Oldsmobile 98, Delta 88, Delmont 88, Dynamic 88, and Pontiac Bonneville, Catalina, and Grand Prix. Backed by a 30-year warranty from SuperSoft, you can trust in their quality and longevity.

Features and Benefits
  • Provides a tight seal to prevent water and air leaks.
  • Reinforced cores ensure durability during installation.
  • Includes clips for easy and secure mounting.
  • Made from premium EPDM sponge polymer for long-lasting performance.

$171.99
• SALE $137.95
Select Color/Material Options  
1966 Oldsmobile Dynamic 88 Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.
1966-1968 Pontiac Bonneville Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.

For 1966-1968 GM B & C Body Convertibles, these pillar post seals, also known as hinge pillar weatherstrips, replace OEM #7602728 and #7602729. Designed to fit between the A-pillar post and the front door, these seals are crafted from soft yet durable EPDM sponge polymer, ensuring a snug and long-lasting fit. They feature embedded internal cores around the main mounting holes, providing extra strength during installation with original hardware. The seals also include hard plastic installation clips for a secure and hassle-free setup. Proudly made in the USA, they boast a smooth skin finish free of exposed cells or flaws, enhancing both durability and appearance. These seals are compatible with a range of classic models, including the 1966-1968 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Eldorado, Chevrolet Impala, Oldsmobile 98, Delta 88, Delmont 88, Dynamic 88, and Pontiac Bonneville, Catalina, and Grand Prix. Backed by a 30-year warranty from SuperSoft, you can trust in their quality and longevity.

Features and Benefits
  • Provides a tight seal to prevent water and air leaks.
  • Reinforced cores ensure durability during installation.
  • Includes clips for easy and secure mounting.
  • Made from premium EPDM sponge polymer for long-lasting performance.

$171.99
• SALE $137.95
Select Color/Material Options  
1966-1968 Pontiac Bonneville Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.
1966-1968 Pontiac Catalina Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.

For 1966-1968 GM B & C Body Convertibles, these pillar post seals, also known as hinge pillar weatherstrips, replace OEM #7602728 and #7602729. Designed to fit between the A-pillar post and the front door, these seals are crafted from soft yet durable EPDM sponge polymer, ensuring a snug and long-lasting fit. They feature embedded internal cores around the main mounting holes, providing extra strength during installation with original hardware. The seals also include hard plastic installation clips for a secure and hassle-free setup. Proudly made in the USA, they boast a smooth skin finish free of exposed cells or flaws, enhancing both durability and appearance. These seals are compatible with a range of classic models, including the 1966-1968 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Eldorado, Chevrolet Impala, Oldsmobile 98, Delta 88, Delmont 88, Dynamic 88, and Pontiac Bonneville, Catalina, and Grand Prix. Backed by a 30-year warranty from SuperSoft, you can trust in their quality and longevity.

Features and Benefits
  • Provides a tight seal to prevent water and air leaks.
  • Reinforced cores ensure durability during installation.
  • Includes clips for easy and secure mounting.
  • Made from premium EPDM sponge polymer for long-lasting performance.

$171.99
• SALE $137.95
Select Color/Material Options  
1966-1968 Pontiac Catalina Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.
1967 Pontiac Grand Prix Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.

For 1966-1968 GM B & C Body Convertibles, these pillar post seals, also known as hinge pillar weatherstrips, replace OEM #7602728 and #7602729. Designed to fit between the A-pillar post and the front door, these seals are crafted from soft yet durable EPDM sponge polymer, ensuring a snug and long-lasting fit. They feature embedded internal cores around the main mounting holes, providing extra strength during installation with original hardware. The seals also include hard plastic installation clips for a secure and hassle-free setup. Proudly made in the USA, they boast a smooth skin finish free of exposed cells or flaws, enhancing both durability and appearance. These seals are compatible with a range of classic models, including the 1966-1968 Buick Electra, LeSabre, Wildcat, Cadillac DeVille, Eldorado, Chevrolet Impala, Oldsmobile 98, Delta 88, Delmont 88, Dynamic 88, and Pontiac Bonneville, Catalina, and Grand Prix. Backed by a 30-year warranty from SuperSoft, you can trust in their quality and longevity.

Features and Benefits
  • Provides a tight seal to prevent water and air leaks.
  • Reinforced cores ensure durability during installation.
  • Includes clips for easy and secure mounting.
  • Made from premium EPDM sponge polymer for long-lasting performance.

$171.99
• SALE $137.95
Select Color/Material Options  
1967 Pontiac Grand Prix Pillar Post Weatherstrip Seals, 66-68 GM B & C Body Convertibles, Pair.